CN209139465U - Flying dust treating system and flying dust processing unit - Google Patents
Flying dust treating system and flying dust processing unit Download PDFInfo
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- CN209139465U CN209139465U CN201822006453.1U CN201822006453U CN209139465U CN 209139465 U CN209139465 U CN 209139465U CN 201822006453 U CN201822006453 U CN 201822006453U CN 209139465 U CN209139465 U CN 209139465U
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Abstract
A kind of flying dust treating system provided by the utility model and flying dust processing unit, are related to flying dust processing technology field, comprising: pretreatment unit includes washing workshop section and drying workshop section；The upper station that workshop section is located at drying workshop section is washed, obtains flying dust filter cake for carrying out washing process to flying dust；The lower station that workshop section is located at washing workshop section is dried, obtains flying dust finished product for carrying out drying and processing to flying dust filter cake；Calcining unit is located at the lower station of pretreatment unit, for carrying out high-temperature calcination processing to the finished product flying dust after drying；Grey treatment unit for waste water is washed to include decalcification reaction workshop section, water stabilization workshop section, neutralize workshop section, filter station and evaporative crystallization workshop section；Decalcification reaction workshop section, water stabilization workshop section, neutralization workshop section and evaporative crystallization workshop section are sequentially connected；Filter station and water stabilization workshop section neutralize workshop section and evaporative crystallization workshop section connect, for washing the carrying out to washing particles contained in grey waste water filter out of grey wastewater treatment.
Description
Technical field
The utility model relates to flying dust processing technology fields, handle more particularly, to a kind of flying dust treating system and flying dust
Device.
Background technique
Incineration of refuse flyash is that flue, gas cleaning dress are mainly collected in during domestic garbage burning electricity generation
It sets, the powder substance that the bulk density of cyclone separator and bag filter etc. is tiny compared with light, partial size.Burning city domestic garbage flies
Not only containing heavy metals inorganic hazardous objects such as a large amount of Cd, Cr, Cu, Ni, Pb and Zn in ash, be also enriched high concentration has most
The organic carcinogens such as supervirulent dioxin, domestic garbage incineration flyash is defined as national danger by State Bueau of Environmental Protection, state still
Dangerous waste (GB 18485-2001) (code name HW18).The technical issues of being processed into for this field urgent need to resolve of flying dust.
Utility model content
The purpose of this utility model is to provide a kind of flying dust treating system and flying dust processing units, to solve existing skill
Present in art the technical issues of flying dust poor processing effect.
A kind of flying dust treating system provided by the utility model, comprising:
Pretreatment unit；
The pretreatment unit includes washing workshop section and drying workshop section；
The washing workshop section is located at the upper station of the drying workshop section, obtains flying dust filter for carrying out washing process to flying dust
Cake；
The drying workshop section is located at the lower station of the washing workshop section, for carrying out drying and processing to flying dust filter cake；
Calcine unit；
The calcining unit is located at the lower station of the pretreatment unit, for carrying out high temperature to the finished product flying dust after drying
Calcination processing；
Wash grey treatment unit for waste water；
It is described wash grey treatment unit for waste water include decalcification reaction workshop section, water stabilization workshop section, neutralize workshop section, filter station and
Evaporative crystallization workshop section；
Decalcification reaction workshop section, the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section are successively
Connection；
The filter station is connect with the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section, is used
In with washing the carrying out to washing particles contained in grey waste water filter out of grey wastewater treatment.
Further, in the embodiments of the present invention, the washing workshop section includes pre- agitator tank, one-stage water wash machine
Structure, second level water washing mechanism and three-level water washing mechanism；
The one-stage water wash mechanism includes that one-stage water wash agitator tank, level-one decanter centrifuge A, level-one filtrate tank and level-one are sleeping
Screw centrifuge B；The sleeping spiral shell of the one-stage water wash agitator tank, the level-one decanter centrifuge A, the level-one filtrate tank and the level-one
Centrifuge B is sequentially connected；
The second level water washing mechanism includes that second level washing agitator tank, second level decanter centrifuge A, second level filtrate tank and second level are sleeping
Screw centrifuge B；The second level washing agitator tank, the second level decanter centrifuge A, the second level filtrate tank and the sleeping spiral shell of the second level
Centrifuge B is sequentially connected；
The three-level water washing mechanism includes that three-level washing agitator tank, three-level decanter centrifuge A, three-level filtrate tank and three-level are sleeping
Screw centrifuge B；The three-level washing agitator tank, the three-level decanter centrifuge A, the three-level filtrate tank and the sleeping spiral shell of the three-level
Centrifuge B is sequentially connected；
Wherein, the level-one decanter centrifuge B and level-one decanter centrifuge A washes agitator tank phase with the second level
Even；Between the second level decanter centrifuge B and second level decanter centrifuge A and three-level washing agitator tank；The three-level
It is connected between the decanter centrifuge B and three-level decanter centrifuge A and the drying workshop section.
Further, in the embodiments of the present invention, the level-one decanter centrifuge B is also washed at grey waste water with described
Unit connection is managed, described washes grey treatment unit for waste water for obtained filtrate to be delivered to；
The second level decanter centrifuge B is also connect with the pre- agitator tank, described pre- for obtained filtrate to be delivered to
Agitator tank；
The three-level decanter centrifuge B is also connect with second level washing agitator tank, for obtained filtrate to be delivered to
The second level washes agitator tank.
Further, in the embodiments of the present invention, the drying workshop section includes tower drier and bag-type dust
Device；
The tower drier is connect with the three-level decanter centrifuge B and the three-level decanter centrifuge B, for winged
Grey filter cake carries out drying and processing；
The bag filter is mounted on the outlet of the tower drier.
Further, in the embodiments of the present invention, decalcification reaction workshop section includes decalcification reactor, sodium carbonate
Dissolving tank and sodium carbonate dosing claim；
The decalcification reactor is connect with the washing workshop section, washes ash containing pump by washing workshop section discharge for obtaining
Waste water；
The sodium carbonate dosing claims to wash grey waste water containing pump with described by the sodium carbonate dissolving tank and connect, is used for described
It is washed in grey waste water containing pump and is mixed into sodium carbonate liquor.
Further, in the embodiments of the present invention, the water stabilization workshop section includes water stabilization reaction tank, steady
Determine conditioning tank and sludge-tank；The water stabilization reaction tank, the stable regulation pond and the sludge-tank are sequentially connected；The dirt
Mud sump is also connect with the drying workshop section.
Further, in the embodiments of the present invention, the neutralization workshop section includes that hydrochloric acid tank, neutralizing tank and pH add
Medicine-chest；The hydrochloric acid tank is connect with the neutralizing tank, and the pH dosing tank is arranged in the hydrochloric acid tank and the neutralizing tank
Between.
Further, in the embodiments of the present invention, the evaporative crystallization workshop section includes falling film evaporator and MVR knot
Brilliant device；The falling film evaporator is connected with the MVR crystallizer.
Further, in the embodiments of the present invention, the filter station includes at least one sand filter, at least one
A level-one fine filter and at least one second level fine filter；
At least one described sand filter and at least one described level-one fine filter are arranged in the water stabilization workshop section and institute
It states and neutralizes workshop section；
At least one described second level fine filter setting is in described and workshop section and the evaporative crystallization workshop section.
Present invention also provides a kind of flying dust processing units, including the flying dust treating system.
In the above-mentioned technical solutions, the flying dust treating system can effectively improve the treatment effect of flying dust processing, full
Sufficient emissions requirements realize the purpose of protection environment.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the first structure diagram for the pretreatment unit that the utility model one embodiment provides；
Fig. 2 is the second structural schematic diagram of the pretreatment unit that the utility model one embodiment provides；
Fig. 3 is the structural schematic diagram for washing grey treatment unit for waste water that the utility model one embodiment provides；
Fig. 4 is the structural schematic diagram for the flying dust treating system that the utility model one embodiment provides.
Appended drawing reference:
The pre- agitator tank of 1-；2- one-stage water wash agitator tank；
3- level-one decanter centrifuge A；4- level-one filtrate tank；
5- level-one decanter centrifuge B；6- second level washes agitator tank；
7- second level decanter centrifuge A；8- second level filtrate tank；
9- second level decanter centrifuge B；10- three-level washes agitator tank；
11- three-level decanter centrifuge A；12- three-level filtrate tank；
13- three-level decanter centrifuge B；14- tower drier；
15- bag filter；16- decalcification reactor；
17- sodium carbonate dissolving tank；18- sodium carbonate dosing claims；
19- water stabilization reaction tank；20- stable regulation pond；
21- sludge-tank；22- hydrochloric acid tank；23- neutralizing tank；
24-pH dosing tank；25- falling film evaporator；26-MVR crystallizer；
27- sand filter；28- level-one fine filter；29- second level fine filter.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
It is in the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", " perpendicular
Directly ", the orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, and is only
For ease of description the utility model and simplify description, rather than the device or element of indication or suggestion meaning must have it is specific
Orientation, be constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, term " the
One ", " second ", " third " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integrally
Connection；It can be mechanical connection, be also possible to be electrically connected；Can be directly connected, can also indirectly connected through an intermediary,
It can be the connection inside two elements.For the ordinary skill in the art, above-mentioned art can be understood with concrete condition
The concrete meaning of language in the present invention.
As shown in Figs 1-4, a kind of flying dust treating system provided in this embodiment, comprising:
Pretreatment unit；
The pretreatment unit includes washing workshop section and drying workshop section；
The washing workshop section is located at the upper station of the drying workshop section, obtains flying dust filter for carrying out washing process to flying dust
Cake；
The drying workshop section is located at the lower station of the washing workshop section, for carrying out drying and processing to flying dust filter cake；
Calcine unit；
The calcining unit is located at the lower station of the pretreatment unit, for carrying out high temperature to the finished product flying dust after drying
Calcination processing；
Wash grey treatment unit for waste water；
It is described wash grey treatment unit for waste water include decalcification reaction workshop section, water stabilization workshop section, neutralize workshop section, filter station and
Evaporative crystallization workshop section；
Decalcification reaction workshop section, the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section are successively
Connection；
The filter station is connect with the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section, is used
In with washing the carrying out to washing particles contained in grey waste water filter out of grey wastewater treatment.
Flying dust can be transported using dedicated tank car according to the flying dust treating system of above-mentioned offer, the loading energy of haulage vehicle
Power about 40t, average transport daily are primary.After flying dust transports to cement plant, dedicated flying dust feed bin is drawn into the method for vacuum intake
In, fly ash carry process uses full negative-pressure operation, guarantees that dust does not leak.Flying dust feed bin top outlet inlet installs bag filter
15, dust arrester installation is opened during material feeding, and tail gas is discharged by 36m high exhaust tube.
Then, flying dust can enter pretreatment unit and successively carry out washing process and drying and processing, to calcine
It is pre-processed before.
For example, the washing workshop section includes pre- agitator tank 1, one-stage water wash mechanism, second level water washing mechanism and three-level rinsing machine
Structure；
The one-stage water wash mechanism includes one-stage water wash agitator tank 2, level-one decanter centrifuge A3, level-one filtrate tank 4 and one
Grade decanter centrifuge B5；The one-stage water wash agitator tank 2, the level-one decanter centrifuge A3, the level-one filtrate tank 4 and described
Level-one decanter centrifuge B5 is sequentially connected；
The second level water washing mechanism includes second level washing agitator tank 6, second level decanter centrifuge A7, second level filtrate tank 8 and two
Grade decanter centrifuge B9；Second level washing agitator tank 6, the second level decanter centrifuge A7, the second level filtrate tank 8 and described
Second level decanter centrifuge B9 is sequentially connected；
The three-level water washing mechanism includes three-level washing agitator tank 10, three-level decanter centrifuge A11,12 and of three-level filtrate tank
Three-level decanter centrifuge B13；The three-level washes agitator tank 10, the three-level decanter centrifuge A11, the three-level filtrate tank 12
It is sequentially connected with the three-level decanter centrifuge B13；
Wherein, the level-one decanter centrifuge B5 and level-one decanter centrifuge A3 and the second level wash agitator tank 6
It is connected；The second level decanter centrifuge B9 and second level decanter centrifuge A7 is connected with three-level washing agitator tank 10；Institute
Three-level decanter centrifuge B13 and the three-level decanter centrifuge A11 is stated to be connected with the drying workshop section.
Also, the level-one decanter centrifuge B5 also washes grey treatment unit for waste water and connect with described, the filter for will obtain
Liquid washes grey treatment unit for waste water described in being delivered to；
The second level decanter centrifuge B9 is also connect with the pre- agitator tank 1, described for obtained filtrate to be delivered to
Pre- agitator tank 1；
The three-level decanter centrifuge B13 is also connect with second level washing agitator tank 6, for conveying obtained filtrate
Agitator tank 6 is washed to the second level.
Washing workshop section carries out under air-tight state, from the foregoing, it will be observed that flying dust is from feed bin by the helix transporting device of sealing
It is delivered in the pre- agitator tank 1 of sealing, and sodium thiosulfate medicament is added to and is washed in buck, while according to a certain percentage to pre-
The filtrate that second level decanter centrifuge B9 is generated is added in agitator tank 1, and is stirred.Mixed serum enters one-stage water wash agitator tank
2 carry out first wash, and the slurries in one-stage water wash agitator tank 2 are squeezed into level-one decanter centrifuge A3 by Pulp pump and are taken off
Water, dewatered filter cake enter second level washing agitator tank 6, and filtrate then enters level-one filtrate tank 4, the filtrate in level-one filtrate tank 4
Pipeline is pumped into using slurry, while PAM solution being added in the duct, filtrate enters one after mixing in pipeline with PAM solution
Grade decanter centrifuge B5 carries out second of centrifugal dehydration, and the filter cake after second dehydration enters second level washing agitator tank 6, filtrate then into
Enter and washes grey treatment unit for waste water.
It is one-stage water wash process above, after one-stage water wash process, just according to same process, successively carries out winged
The second level water-washing process and three-level water-washing process of ash.Wherein, the reuse of second level decanter centrifuge B9 dehydration filtrate is to pre- agitator tank 1,
Three-level decanter centrifuge B13 dehydration filtrate reuse to second level washes agitator tank 6.After three-level washing, filter cake is then entered
Workshop section is dried, drying and processing is carried out to filter cake.
For example, the drying workshop section includes tower drier 14 and bag filter 15；
The tower drier 14 is connect with the three-level decanter centrifuge B13 and the three-level decanter centrifuge B13, is used
In to flying dust filter cake progress drying and processing；
The bag filter 15 is mounted on the outlet of the tower drier 14.
From the foregoing, it will be observed that flying dust filter cake is dried using a set of tower drier 14 in drying workshop section, drying heat source is used
Cement kiln head waste heat flue gas.The moisture content of drying control flying dust is 3% or so, prevents overdrying from causing dust from flying and generation
The problems such as electrostatic.Flying dust after drying enters flying dust finished bin, partially enters back-mixing feed bin, remaining sealed biography as back-mixing material
Device is sent to be sent into cement kiln high-temperature section calcining.
Bag filter 15 is set in the outlet of tower drier 14, drying exhaust gas is discharged through the exhaust tube of high 50m；Flying dust
Finished bin and the charging of back-mixing feed bin use negative pressure transportation, and exhaust gas is incorporated to drying workshop section's bag filter 15 and handles.
Flying dust is washed, after drying, has eliminated a large amount of chloride ion and potassium, sodium ion, can enter cement kiln, that is, forge
Burn unit safe disposal.By pretreated flying dust by closed Pneumatic conveyer, from cement rotary kiln kiln exit gas room
The connecting portion of top and Pyatyi preheater bottom is added kiln tail and carries out high-temperature calcination.Cement kiln temperature is greater than 1000 DEG C, cigarette
Residence time > 20s of the gas in cement kiln, the dioxin in flying dust decompose under the high temperature conditions, and heavy metal ion is by effectively solid
Change in clinker lattice, realizes the harmlessness disposing of flying dust.
After being disposed above, this system can also carry out washing the processing of grey waste water, wash grey treatment unit for waste water using " de-
The process of calcium+filtering+neutralization+MVR evaporative crystallization " washes grey waste water.Washing grey waste water main component is NaCl, KCl, is in addition gone back
Including a small amount of Ca2+.It washes grey waste water and enters mechanical compression evaporator (MVR) evaporation after flocculation sedimentation, multistage filtering, neutralisation treatment
Crystallization, the recycling condensing water evaporated wash workshop section's moisturizing in flying dust, and crystal salt (NaCl, KCl) is sold outside as industrial chemicals.
Wherein, grey treatment unit for waste water is washed to include decalcification reaction workshop section, water stabilization workshop section, neutralize workshop section, filter station and evaporation knot
Brilliant workshop section；
Decalcification reaction workshop section, the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section are successively
Connection；
The filter station is connect with the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section, is used
In with washing the carrying out to washing particles contained in grey waste water filter out of grey wastewater treatment.
For example, decalcification reaction workshop section includes that decalcification reactor 16, sodium carbonate dissolving tank 17 and sodium carbonate dosing claim 18；
The decalcification reactor 16 is connect with the washing workshop section, for obtaining by mercurous the washing of washing workshop section discharge
Grey waste water；
The sodium carbonate dosing claim 18 by the sodium carbonate dissolving tank 17 with it is described it is mercurous wash grey waste water and connect, be used for
Described wash in grey waste water containing pump is mixed into sodium carbonate liquor.
It washes grey waste water and enters No. 1 intermediate pool from level-one decanter centrifuge B5, waste water is opened simultaneously by being pumped into pipeline in pond
Dynamic sodium carbonate dosing claims 18, and it is abundant that waste water and sodium carbonate liquor enter decalcification reactor 16 after pipe-line mixer tentatively mixes
Mixing, mixed waste water flow to water stabilization workshop section from 16 top effluent weir of decalcification reactor certainly.
The chemical reaction occurred in decalcification reactor 16 are as follows: Ca2++CO3 2-=CaCO3↓
Meanwhile the water stabilization workshop section includes water stabilization reaction tank 19, stable regulation pond 20 and sludge-tank 21；It is described
Water stabilization reaction tank 19, the stable regulation pond 20 and the sludge-tank 21 are sequentially connected；The sludge-tank 21 also with it is described
Dry workshop section's connection.
Waste water is further reacted in water stabilization reaction tank 19, sufficiently by the Ca in waste water2+It precipitates, is then pumped to
Stable regulation pond 20.Waste water realizes that water quality is clarified in stable regulation pond 20, sets mud system of scraping in pond, waste water is in stable regulation pond
It is sufficiently settled in 20, the sludge under settling is scraped under the action of scraping mud system to bottom of pond collection mud pit, is made using hydraulic pressure
With being depressed into sludge-tank 21；Sludge is pumped into water-washing pre-treatment unit in sludge-tank 21, after drying with one piece of feeding cement kiln of flying dust
Calcining.
Further, in the embodiments of the present invention, the neutralization workshop section includes hydrochloric acid tank 22,23 and of neutralizing tank
PH dosing tank 24；The hydrochloric acid tank 22 is connect with the neutralizing tank 23, and the pH dosing tank 24 is arranged in the hydrochloric acid tank
Between 22 and the neutralizing tank 23.
There are two types of the modes that waste water self-stabilization conditioning tank 20 is discharged: one is top layer drainings to flow in No. 2 certainly from effluent weir
Between pond；Another kind is that stable regulation pond 20 does not reach high liquid level, needs to drain into waste water in No. 2 using low liquid level draining pump
Between pond.Waste water in No. 2 intermediate pools is discharged into sand filter 27.Waste water enters after sand filter 27 and level-one fine filter 28 are handled
Neutralizing tank 23.And hydrochloric acid is added by neutralizing tank 23 by pH dosing tank 24 simultaneously, wastewater pH is adjusted as after 7-9, waste water is flow to certainly
Clear water reserviors.
Further, in the embodiments of the present invention, the evaporative crystallization workshop section includes falling film evaporator 25 and MVR
Crystallizer 26；The falling film evaporator 25 and the MVR crystallizer 26 connection.
Solution is recycled in heating tube in a falling film evaporator 25 by Matter Transfer pump.Primary steam is by waste heat
Electricity generation boiler provides, and solution ebuillition of heated is generated secondary vapour, the secondary vapour of generation is sucked by turbine boosted fan, through vapour pressure
After the pressurization of contracting machine, reheat steam temperature degree is improved, and enters heating room circulating and evaporating as heat source.After normal starting, turbo-compressor
Machine sucks secondary steam, becomes heating steam after being pressurized, continually carries out circulating and evaporating like this.The moisture evaporated
Recycling condensing water is ultimately become, the fixed gas (predominantly air) that material heating process generates is discharged by fixed gas exhaust valve.
And the crystallization of crystallization process, mainly sodium salt and sylvite.Filtrate be delivered to MVR crystallizer 26, sylvite and sodium salt with
The form of crystal salt is separated, and is sold outside as industrial chemicals.
Control stress point: evaporator, heat exchange area, tubulation cleaning, liquid distributor, internal circulating load etc..Prevent blocking liquid distributor,
The case where Crystallization Plugging pipeline, occurs in advance, to extend the cleaning frequency of evaporator, improves system running efficiency.
Further, in the embodiments of the present invention, the filter station includes at least one sand filter 27, at least
One level-one fine filter 28 and at least one second level fine filter 29；
At least one described sand filter 27 and at least one described level-one fine filter 28 are arranged in the water stabilization workshop section
With the neutralization workshop section；
At least one described second level fine filter 29 setting is in described and workshop section and the evaporative crystallization workshop section.
Present invention also provides a kind of flying dust processing units, including the flying dust treating system.
Finally, it should be noted that the above various embodiments is only to illustrate the technical solution of the utility model, rather than it is limited
System；Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should
Understand: it is still possible to modify the technical solutions described in the foregoing embodiments, or to some or all of
Technical characteristic is equivalently replaced；And these are modified or replaceed, it does not separate the essence of the corresponding technical solution, and this is practical new
The range of each embodiment technical solution of type.
Claims (10)
1. a kind of flying dust treating system characterized by comprising
Pretreatment unit；
The pretreatment unit includes washing workshop section and drying workshop section；
The washing workshop section is located at the upper station of the drying workshop section, obtains flying dust filter cake for carrying out washing process to flying dust；
The drying workshop section is located at the lower station of the washing workshop section, for carrying out drying and processing to flying dust filter cake；
Calcine unit；
The calcining unit is located at the lower station of the pretreatment unit, for carrying out high-temperature calcination to the finished product flying dust after drying
Processing；
Wash grey treatment unit for waste water；
It is described to wash grey treatment unit for waste water and include decalcification reaction workshop section, water stabilization workshop section, neutralize workshop section, filter station and evaporation
Crystallization section；
Decalcification reaction workshop section, the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section are sequentially connected；
The filter station is connect with the water stabilization workshop section, the neutralization workshop section and the evaporative crystallization workshop section, for
Wash the carrying out to washing particles contained in grey waste water filter out of grey wastewater treatment.
2. flying dust treating system according to claim 1, which is characterized in that the washing workshop section includes pre- agitator tank, one
Grade water washing mechanism, second level water washing mechanism and three-level water washing mechanism；
The one-stage water wash mechanism include one-stage water wash agitator tank, level-one decanter centrifuge A, level-one filtrate tank and level-one crouch spiral shell from
Scheming B；The sleeping spiral shell centrifugation of the one-stage water wash agitator tank, the level-one decanter centrifuge A, the level-one filtrate tank and the level-one
Machine B is sequentially connected；
The second level water washing mechanism include second level washing agitator tank, second level decanter centrifuge A, second level filtrate tank and second level crouch spiral shell from
Scheming B；The second level washing agitator tank, the second level decanter centrifuge A, the second level filtrate tank and the sleeping spiral shell centrifugation of the second level
Machine B is sequentially connected；
The three-level water washing mechanism include three-level washing agitator tank, three-level decanter centrifuge A, three-level filtrate tank and three-level crouch spiral shell from
Scheming B；The three-level washing agitator tank, the three-level decanter centrifuge A, the three-level filtrate tank and the sleeping spiral shell centrifugation of the three-level
Machine B is sequentially connected；
Wherein, the level-one decanter centrifuge B and level-one decanter centrifuge A is connected with second level washing agitator tank；Institute
Second level decanter centrifuge B and the second level decanter centrifuge A is stated to be connected with three-level washing agitator tank；The three-level crouch spiral shell from
The scheming B and three-level decanter centrifuge A is connected with the drying workshop section.
3. flying dust treating system according to claim 2, which is characterized in that the level-one decanter centrifuge B also with it is described
The connection of grey treatment unit for waste water is washed, described washes grey treatment unit for waste water for obtained filtrate to be delivered to；
The second level decanter centrifuge B is also connect with the pre- agitator tank, for obtained filtrate to be delivered to the pre- stirring
Tank；
The three-level decanter centrifuge B is also connect with second level washing agitator tank, described for obtained filtrate to be delivered to
Second level washes agitator tank.
4. flying dust treating system according to claim 2, which is characterized in that the drying workshop section include tower drier and
Bag filter；
The tower drier is connect with the three-level decanter centrifuge B and the three-level decanter centrifuge B, for filtering to flying dust
Cake carries out drying and processing；
The bag filter is mounted on the outlet of the tower drier.
5. flying dust treating system described in any one of -4 according to claim 1, which is characterized in that decalcification reaction workshop section packet
Decalcification reactor, sodium carbonate dissolving tank and sodium carbonate dosing is included to claim；
The decalcification reactor is connect with the washing workshop section, grey useless by washing containing pump for washing workshop section discharge for obtaining
Water；
The sodium carbonate dosing claims to wash grey waste water containing pump with described by the sodium carbonate dissolving tank and connect, for described containing pumping
It washes in grey waste water and is mixed into sodium carbonate liquor.
6. flying dust treating system according to claim 5, which is characterized in that the water stabilization workshop section includes water stabilization
Reaction tank, stable regulation pond and sludge-tank；The water stabilization reaction tank, the stable regulation pond and the sludge-tank successively connect
It connects；The sludge-tank is also connect with the drying workshop section.
7. flying dust treating system according to claim 6, which is characterized in that the neutralization workshop section include hydrochloric acid tank, in
With tank and pH dosing tank；The hydrochloric acid tank is connect with the neutralizing tank, pH dosing tank setting the hydrochloric acid tank with
Between the neutralizing tank.
8. flying dust treating system according to claim 7, which is characterized in that the evaporative crystallization workshop section includes falling film evaporation
Device and MVR crystallizer；The falling film evaporator is connected with the MVR crystallizer.
9. flying dust treating system according to claim 8, which is characterized in that the filter station includes at least one sand filtration
Device, at least one level-one fine filter and at least one second level fine filter；
At least one described sand filter and at least one described level-one fine filter setting the water stabilization workshop section and it is described in
And workshop section；
At least one described second level fine filter setting is in described and workshop section and the evaporative crystallization workshop section.
10. a kind of flying dust processing unit, which is characterized in that including flying dust processing system as claimed in any one of claims 1-9 wherein
System.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109290345A (en) * | 2018-11-30 | 2019-02-01 | 北京金隅琉水环保科技有限公司 | Flying dust treating system and flying dust processing unit |
| CN111515224A (en) * | 2020-04-28 | 2020-08-11 | 北京环丁环保大数据研究院 | Garbage fly ash treatment method |
| CN114733889A (en) * | 2022-04-07 | 2022-07-12 | 深圳市小荷环保技术有限公司 | Waste incineration fly ash washing device and method |
| WO2022247819A1 (en) * | 2021-05-24 | 2022-12-01 | 南京工业大学 | Domestic waste incineration fly ash treatment system |
| WO2023036048A1 (en) * | 2021-09-07 | 2023-03-16 | 中冶长天国际工程有限责任公司 | Method and system for recycling sintered ash |
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2018
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109290345A (en) * | 2018-11-30 | 2019-02-01 | 北京金隅琉水环保科技有限公司 | Flying dust treating system and flying dust processing unit |
| CN111515224A (en) * | 2020-04-28 | 2020-08-11 | 北京环丁环保大数据研究院 | Garbage fly ash treatment method |
| CN111515224B (en) * | 2020-04-28 | 2021-10-19 | 北京环丁环保大数据研究院 | Garbage fly ash treatment method |
| WO2022247819A1 (en) * | 2021-05-24 | 2022-12-01 | 南京工业大学 | Domestic waste incineration fly ash treatment system |
| US12024456B2 (en) | 2021-05-24 | 2024-07-02 | Nanjing Tech University | Domestic waste incineration fly ash treatment system |
| WO2023036048A1 (en) * | 2021-09-07 | 2023-03-16 | 中冶长天国际工程有限责任公司 | Method and system for recycling sintered ash |
| CN114733889A (en) * | 2022-04-07 | 2022-07-12 | 深圳市小荷环保技术有限公司 | Waste incineration fly ash washing device and method |
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